What is the Least Common Multiple of 55770 and 55790?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 55770 and 55790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55770 and 55790, than apply into the LCM equation.

GCF(55770,55790) = 10
LCM(55770,55790) = ( 55770 × 55790) / 10
LCM(55770,55790) = 3111408300 / 10
LCM(55770,55790) = 311140830

Least Common Multiple (LCM) of 55770 and 55790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55770 and 55790. First we will calculate the prime factors of 55770 and 55790.

Prime Factorization of 55770

Prime Factorization of 55790

Now multiplying the highest exponent prime factors to calculate the LCM of 55770 and 55790.

LCM(55770,55790) = 2¹ × 3¹ × 5¹ × 11¹ × 13² × 7¹ × 797¹
LCM(55770,55790) = 311140830